<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="app">
    
    佳丽1
    <input type="radio"  v-model="imgSrc" value="https://img.tupianzj.com/uploads/allimg/202103/9999/914fab1997.jpg">
    佳丽2
    <input type="radio" v-model="imgSrc" value="https://img.tupianzj.com/uploads/allimg/202103/9999/2be7c8cff1.jpg">
    佳丽3
    <input type="radio" v-model="imgSrc" value="https://img.tupianzj.com/uploads/allimg/202103/9999/rn3c3bd3dd78.jpg">
    <hr>
    <!-- <img v-bind:src="imgSrc" alt=""> -->
    <img :src="imgSrc" alt="">
    <button :aa="msg">按钮</button>
    <!-- <button v-bind:aa="msg">按钮</button> -->
  </div>
  <script src="./vue.js"></script>
  <script>
    const vm = new Vue({
      el: '#app',
      data: {
        imgSrc: 'https://img.tupianzj.com/uploads/allimg/202103/9999/914fab1997.jpg',
        msg:'我是aa'
      }
    })
  </script>
</body>
</html>